we get an interesting perspective on this from john mccain, he's debated both the president and mitt romney. he says we will see two very strong well-prepared debaters and he predicts few surprises. the president's behind closed doors in nevada for the next two days preparing to face mitt romney in denver wednesday. >> he's a good debater. i'm just okay. but what i'm most concerned about is having a serious discussion about what we need to do to keep the country growing. >> reporter: both sides are downplaying expectations. a senior aide to the president says romney will be prepared, disciplined and aggressive. romney's debate partner calls the president a tough debater. >> barack obama is going to be formidable, and i think it will be a good debate, but i certainly would not underestimate what barack obama brings to it. >> reporter: john kerry's playing romney with the president. in a weekend memo, republicans urged kerry to press the president on libya and syria. romney calls obama's foreign policy dangerous. romney's debate plan, clearly and concisely explain how he can fix the ec